import java.util.Scanner;

public class HomeWork15 {
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        System.out.print("请输入一个数字；");
        int num = s.nextInt();
        if (num % 7 == 0) {
            System.out.println("num是7的倍数");
        } else {
            System.out.println(("num不是7的倍数"));


        }
    }
}